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Controller device to be connected to IEEE 1394 serial bus

a serial bus and control device technology, applied in the field of control devices, can solve the problems of taking an hour or more to select and delete unnecessary program files, almost all recorded program files are unnecessary for the user, and the entire hard disk recorder cannot be deleted all together, so as to achieve the effect of short time period and simple operation

Inactive Publication Date: 2009-05-19
FUNAI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables rapid and simple deletion of all unnecessary program files from the hard disk recorder, regardless of manufacturer differences, by repeatedly transmitting deletion commands and managing lock states, effectively mimicking a format command's effect even when format commands are invalid.

Problems solved by technology

However, when the number of the program files to be deleted exceeds 100, it may take one hour or more only to select and delete the unnecessary program files.
In many cases, when remaining storage capacity of the hard disk in the hard disk recorder has been run out, almost all of recorded program files are unnecessary for the user.
Furthermore, even when the user intends to delete all program files in the hard disk recorder by using a format command, since the format command issued from the controller device to the hard disk recorder is effective only between devices made by the same manufacturer, all program files in the hard disk recorder cannot be deleted all together by using a format command in the case where a manufacturer of the controller device is different from that of the hard disk recorder.

Method used

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  • Controller device to be connected to IEEE 1394 serial bus
  • Controller device to be connected to IEEE 1394 serial bus
  • Controller device to be connected to IEEE 1394 serial bus

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0028]FIG. 1 shows the electric block configuration of a set-top box and a hard disk recorder connected to the set-top box through an IEEE 1394 serial bus. This set-top box (hereinafter referred to as “STB”) 1 outputs a broadcast signal of a channel selected by the user among broadcast signals received through an antenna 4. The hard disk recorder 2 is a so-called AVHDD-type hard disk recorder which can transmit and receive control commands for IEEE 1394.

[0029]The STB 1 is provided with a microprocessor 7 (control means, program total number acquisition means, decrement means, determination means in claims) for controlling the whole of the STB 1. A tuner 5, a demodulation unit 6, an IEEE 1394 interface 8 (hereinafter referred to as “interface”), an infrared signal reception unit (IR receiver) 9, display unit (display) 10, a RAM 11 and a ROM 12 are connected to the microprocessor 7.

[0030]The tuner 5 extracts a broadcast signal of a channel selected by the user among broadcast signals...

second embodiment

[0039]As described above, according to the STB 1 of the second embodiment, when the user merely performs the simple operation of instructing deletion of all program files 41 stored in the hard disk recorder 2 by use of the remote control 20, the microprocessor 7 on the side of the STB 1 repeats the processing of transmitting the deletion command with respect to all program files 41 excluding the program file 41 in a locking state among the program files stored in the hard disk recorder 2. Thus, all unnecessary program files 41 in the hard disk recorder 2 can be deleted from the side of the STB 1 in a short time period with simple operation.

[0040]Subsequently, processing in a STB 1 in accordance with a third embodiment will be described with reference to a flow chart of FIG. 5. In the first and second embodiments, when the user instructs whole deletion using the remote control 20, all program files 41 excluding the program file 41 in a locking state among the program files stored in ...

third embodiment

[0043]As mentioned above, according to the STB 1 of the third embodiment, when the user merely performs the simple operation of instructing deletion of all program files 41 stored in the hard disk recorder 2 by use of the remote control 20, the microprocessor 7 on the side of the STB 1 repeats the processing of transmitting the deletion command with respect to each program file to the hard disk recorder 2 until the value of the program total number counter becomes 0. For the program file not deleted, the microprocessor 7 transmits the lock release command with respect to the program file concerned to the hard disk recorder 2 to release the locking state of the program file, and transmits the deletion command with respect to the program file again. Thus, even when a manufacturer of the STB 1 is different from that of the hard disk recorder 2 and thus a format command of the hard disk 35 transmitted from the STB 1 to the hard disk recorder 2 becomes invalid, the same effect can be obt...

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Abstract

When the user instructs deletion of all program files using a remote control, a microprocessor of a set-top box repeats transmission of a deletion command with respect to all program files stored in a hard disk recorder to the hard disk recorder and deletes all program files excluding the program file subjected to lock processing among all program files stored in a hard disk recorder. Thus, the set-top box can delete all of unnecessary program files in the hard disk recorder in a short time period.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a controller device such as a set-top box and a digital television receiving set, which can be connected to a hard disk recorder for IEEE 1394 (so-called AVHDD) via an IEEE 1394 serial bus.[0003]2. Description of the Related Art[0004]In recent years, hard disk recorders to be connected to a controller device such as a set-top box and a digital television receiving set by using an IEEE 1394 serial bus cable (so-called AVHDD) have been increasingly used. When using this kind of hard disk recorders, the user generally adopts a method of accumulating program files until remaining storage capacity of a hard disk in the hard disk recorder has been run out and then selecting and deleting program files to be deleted one by one from the side of the controller device, or selecting program files to be deleted one by one from the side of the controller device and deleting the selected program files ...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G06F12/14
CPCH04L12/40117H04N21/4147H04N21/4335H04N21/47G06F3/0601G06F2003/0692G06F3/0673
Inventor SENOO, JYUNYA
Owner FUNAI ELECTRIC CO LTD
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